A sheet-like stainless steel connector and a precast concrete sandwich insulation wall

Abstract

This utility model provides a sheet-like stainless steel connector and a precast concrete sandwich insulation wall. The sheet-like stainless steel connector includes: a central plate, which is rectangular in shape and has arc-shaped notches on each of its four sides; a pair of connecting plates, which are symmetrically arranged on both sides of the central plate, with an elliptical hollow structure at the center of each connecting plate, and anchoring holes at both ends of the connecting plates away from the central plate. The precast concrete sandwich insulation wall includes: an inner leaf concrete slab; an outer leaf concrete slab, which is arranged on both sides of the inner leaf concrete slab; an insulation layer, which is arranged between the inner leaf concrete slab and the outer leaf concrete slab; a sheet-like stainless steel connector, which penetrates the insulation layer and extends into the interior of the inner leaf concrete slab and the outer leaf concrete slab, thereby connecting the inner leaf concrete slab and the outer leaf concrete slab, with the central plate corresponding to the position of the insulation layer; and a through-bar, which penetrates the anchoring holes, and the through-bar is bound to the anchoring holes.

Description

Technical Field

[0001] This utility model relates to the technical field of insulated wall connectors, specifically to a sheet-like stainless steel connector and a precast concrete sandwich insulated wall. Background Technology

[0002] Existing research shows that a well-designed layout of insulated exterior walls can reduce building energy consumption by over 70%. Common building exterior wall insulation structures are divided into internal insulation, external insulation, and sandwich insulation. Internal insulation is easily damaged by interior decoration; external insulation has issues with durability, fire resistance, and detachment; sandwich insulation places the insulation material between inner and outer concrete panels, allowing the insulation system to have the same lifespan as the main structure. Precast concrete sandwich insulated walls typically consist of inner and outer concrete wall panels, insulation material, and connectors. The connectors are crucial components that connect the inner and outer concrete wall panels, ensuring reliable structural stress.

[0003] In practical engineering, gravity loads, wind loads, and seismic forces will generate shear forces in the connectors of precast concrete sandwich insulated walls. Therefore, the connectors in precast concrete sandwich insulated walls should have a certain shear resistance. Figure 4 This is a structural schematic diagram of a sheet-like stainless steel connector from the prior art. (Example) Figure 4 As shown, the connectors commonly used in precast concrete sandwich insulated walls 100' in engineering mainly include FRP connectors and stainless steel connectors. The sheet-like stainless steel connector 50' includes a central plate 51' and a first connecting plate 55' and a second connecting plate 56' located on both sides of the central plate 51'. The existing sheet-like stainless steel connector 50' has low thermal conductivity and excellent shear resistance, and its durability is superior to that of FRP materials. It is easy to construct and has high shear bearing capacity, and is widely used in current engineering projects. However, because the failure mode of this sheet-like stainless steel connector 50' is shear buckling failure, the material strength is not fully utilized, resulting in significant material waste. Areas with low stress in the connection region can be further optimized and modified to achieve the goal of saving materials. Utility Model Content

[0004] This utility model was developed to solve the above-mentioned problems, and its purpose is to provide a sheet-like stainless steel connector and a precast concrete sandwich insulation wall.

[0005] This utility model provides a sheet-like stainless steel connector, characterized by: a central plate, which is rectangular in shape and has arc-shaped notches on each of its four sides; a pair of connecting plates, which are symmetrically arranged on both sides of the central plate, with an elliptical hollow structure at the center of the connecting plates, and anchoring holes at both ends of the connecting plates on the side away from the central plate.

[0006] The sheet-like stainless steel connector provided by this utility model may also have the following features: the center plate includes two center plate connecting edges for connecting with the connecting plate, and two center plate open edges adjacent to the center plate connecting edges. The chord length of the arc-shaped notch on the open edge of the center plate is 0.7 to 0.9 times the length of the open edge of the center plate, and the sagitta is 0.05 to 0.15 times the length of the center plate connecting edge. The chord length of the arc-shaped notch on the connecting edge of the center plate is 0.2 to 0.4 times the length of the center plate connecting edge, and the sagitta is 0.05 to 0.15 times the length of the open edge of the center plate.

[0007] The sheet-like stainless steel connector provided by this utility model may also have the following features: the connecting plate includes a connecting edge for connecting with the center plate, and an open edge of the connecting plate adjacent to the connecting edge; the major axis of the elliptical hollow structure is 0.4 to 0.6 times the length of the connecting edge of the connecting plate, and the length direction of the elliptical hollow structure is 18 to 22 mm.

[0008] The sheet-like stainless steel connector provided by this utility model may also have the following feature: the diameter of the anchoring holes is 8 to 12 mm.

[0009] This utility model also provides a precast concrete sandwich insulated wall, comprising: an inner leaf concrete slab; an outer leaf concrete slab disposed on both sides of the inner leaf concrete slab; an insulation layer disposed between the inner leaf concrete slab and the outer leaf concrete slab; sheet-like stainless steel connectors penetrating the insulation layer and extending into the interior of the inner leaf concrete slab and the outer leaf concrete slab, thereby connecting the inner leaf concrete slab and the outer leaf concrete slab, with the position of the central plate corresponding to the insulation layer; and through-bar reinforcement with through-anchor holes, wherein the through-bar reinforcement and the anchor holes are bound together.

[0010] The precast concrete sandwich insulation wall provided by this utility model may also have the following features: wherein a pair of connecting plates are a first connecting plate and a second connecting plate, the position of the first connecting plate corresponds to the position of the outer leaf concrete plate, and the position of the second connecting plate corresponds to the position of the inner leaf concrete plate.

[0011] The precast concrete sandwich insulation wall provided by this utility model may also have the following features: the anchor hole provided on the first connecting plate is the first anchor hole, the anchor hole provided on the second connecting plate is the second anchor hole, the through steel bar and the first anchor hole are subject to sliding constraint, and the through steel bar and the second anchor hole are subject to fixed constraint.

[0012] Functions and effects of utility models

[0013] Based on the sheet-like stainless steel connector and precast concrete sandwich insulation wall involved in this utility model, by topological optimization and manual modification of the existing sheet-like stainless steel connector, the areas with lower stress in the sheet-like stainless steel connector are further optimized and modified. While giving full play to the strength of the material, material waste is avoided, and the actual production and construction needs can be better met. Attached Figure Description

[0014] Figure 1 This is a diagram showing the arrangement of the sheet-like stainless steel connectors in the sandwich insulation wall in an embodiment of this utility model.

[0015] Figure 2 This is an embodiment of the present invention. Figure 2 AA section view;

[0016] Figure 3 This is a structural schematic diagram of the sheet-like stainless steel connector in an embodiment of this utility model; and

[0017] Figure 4 This is a structural schematic diagram of a sheet-like stainless steel connector in the prior art.

[0018] Explanation of Figure Numbers

[0019] 100, 100' - Precast concrete sandwich insulated wall

[0020] 10-Inner leaf concrete slab,

[0021] 20 - Outer leaf concrete slab, 21 - Longitudinal reinforcement bars of the concrete slab, 22 - Transverse reinforcement bars through the concrete slab.

[0022] 30 - Insulation layer

[0023] 40 - Through-bar reinforcement,

[0024] 50, 50' - Sheet-shaped stainless steel connector; 51, 51' - Center plate; 52 - Arc-shaped notch; 53 - Center plate connecting edge; 54 - Center plate open edge; 55, 55' - First connecting plate; 56, 56' - Second connecting plate; 57 - Connecting plate connecting edge; 58 - Connecting plate open edge; 59 - First anchoring hole; 60 - Second anchoring hole; 61 - Elliptical hollow structure. Detailed Implementation

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically illustrate the novel sheet-like stainless steel connector and the precast concrete sandwich insulation wall of this utility model.

[0027] Figure 1 This is a diagram showing the arrangement of the sheet-like stainless steel connectors in the sandwich insulation wall in an embodiment of this utility model. Figure 2 This is an embodiment of the present invention. Figure 2 AA sectional view. Figure 3 This is a schematic diagram of the structure of the sheet-like stainless steel connector in an embodiment of this utility model.

[0028] like Figure 1-2 As shown, the precast concrete sandwich insulated wall 100 in this embodiment includes: an inner leaf concrete slab 10, an outer leaf concrete slab 20, an insulation layer 30, sheet-like stainless steel connectors 50, and through steel bars 40.

[0029] The outer leaf concrete slab 20 is set on both sides of the inner leaf concrete slab 10. The outer leaf concrete slab 20 and the inner leaf concrete slab 10 enhance the integrity of the structure through the longitudinal distribution reinforcement 21 and the transverse distribution reinforcement 22 of the concrete slab.

[0030] The insulation layer 30 is disposed between the inner leaf concrete slab 10 and the outer leaf concrete slab 20.

[0031] The sheet-shaped stainless steel connector 50 penetrates the insulation layer 30 and extends into the inner leaf concrete slab 10 and the outer leaf concrete slab 20, thereby connecting the inner leaf concrete slab 10 and the outer leaf concrete slab 20. The position of the center plate 51 corresponds to that of the insulation layer 30.

[0032] like Figure 3 As shown, the sheet-like stainless steel connector 50 includes a center plate 51 and a pair of connecting plates 55 and 56.

[0033] The center plate 51 is rectangular in shape, and each of its four sides has an arc-shaped notch 52.

[0034] The center plate 51 includes two center plate connecting edges 53 for connecting with the connecting plate, and two center plate open edges 54 adjacent to the center plate connecting edges 53.

[0035] The chord length of the arc-shaped notch 52 on the open edge 54 of the center plate is 0.8 times the length of the open edge 54 of the center plate, and the sag is 0.1 times the length of the connecting edge 53 of the center plate.

[0036] The chord length of the arc-shaped notch 52 on the connecting edge 53 of the center plate is 0.2 times the length of the connecting edge 53 of the center plate, and the sag is 0.1 times the length of the open edge 54 of the center plate.

[0037] The connecting plate includes a connecting edge 57 for connecting to the center plate 51, and an open edge 58 adjacent to the connecting edge 57.

[0038] An elliptical hollow structure 61 is provided at the center of the connecting plate. The major axis of the elliptical hollow structure 61 is 0.5 times the length of the connecting edge 57 of the connecting plate, and the length of the elliptical hollow structure 61 is 20mm.

[0039] A pair of connecting plates, namely the first connecting plate 55 and the second connecting plate 56, are symmetrically arranged on both sides of the center plate 51. Anchor holes are provided at both ends of the connecting plates on the side away from the center plate 51, and the diameter of the anchor holes is 10mm.

[0040] The position of the first connecting plate 55 corresponds to the position of the outer concrete slab 20, and the anchor hole provided on the first connecting plate 55 is the first anchor hole 59.

[0041] The position of the second connecting plate 56 corresponds to the position of the inner leaf concrete slab 10, and the anchoring hole provided on the second connecting plate 56 is the second anchoring hole 60.

[0042] The through-bar 40 is provided, passing through the first anchor hole 59 and the second anchor hole 60. The through-bar 40 and the first anchor hole 59 are subject to sliding constraint, and the through-bar 40 and the second anchor hole 60 are subject to fixed constraint.

[0043] The specific steps for applying the sheet-like stainless steel connector 50 of this utility model to the precast concrete sandwich insulation wall 100 are as follows:

[0044] (1) For the arrangement of the sheet stainless steel connector 50, please refer to [the relevant documentation]. Figure 2 Holes are pre-drilled in the insulation layer 30, and the through steel bar 40 is passed through the first anchoring hole 59 and tied together with the steel bar of the outer leaf concrete slab 20.

[0045] (2) After pouring the outer concrete slab 20, quickly install the insulation layer 30 and fill the gap with foaming agent.

[0046] (3) Pass the through steel bar 40 through the second anchor hole 60 and tie it together with the steel bar of the inner leaf concrete slab 10.

[0047] (4) After the precast concrete sandwich insulation wall has been cured to 75% of its design strength, it is transported to the site and hoisted to the designated location for installation.

[0048] The role and effect of the embodiments

[0049] Based on the sheet-like stainless steel connector and precast concrete sandwich insulation wall involved in this utility model, by topological optimization and manual modification of the existing sheet-like stainless steel connector, the areas with lower stress in the sheet-like stainless steel connector are further optimized and modified. While giving full play to the strength of the material, material waste is avoided, and the actual production and construction needs can be better met.

[0050] This invention, by limiting the chord length and sag of the arc-shaped notch, minimizes the volume and strain capacity of the sheet-like stainless steel connector while ensuring that its mechanical properties meet design specifications.

[0051] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sheet stainless steel connector, characterized by, include: The center plate is rectangular in shape, and each of its four sides has an arc-shaped notch. A pair of connecting plates are symmetrically arranged on both sides of the central plate. An elliptical hollow structure is provided at the center of the connecting plate, and anchoring holes are provided at both ends of the connecting plate on the side away from the central plate.

2. The sheet-like stainless steel connector according to claim 1, characterized in that: wherein The center plate includes two center plate connecting edges for connecting to the connecting plate, and two center plate open edges adjacent to the center plate connecting edges. The chord length of the arc-shaped notch on the open edge of the central plate is 0.7 to 0.9 times the length of the open edge of the central plate, and the sag is 0.05 to 0.15 times the length of the connecting edge of the central plate. The chord length of the arc-shaped notch on the connecting edge of the center plate is 0.2 to 0.4 times the length of the connecting edge of the center plate, and the sag is 0.05 to 0.15 times the length of the open edge of the center plate.

3. The sheet-like stainless steel connector according to claim 1, characterized in that: wherein The connecting plate includes a connecting edge for connecting to the center plate, and an open edge adjacent to the connecting edge. The major axis of the elliptical hollow structure is 0.4 to 0.6 times the length of the connecting edge of the connecting plate, and the length of the elliptical hollow structure is 18 to 22 mm.

4. The sheet-like stainless steel connector according to claim 1, characterized in that: wherein The diameter of the anchoring holes is 8 to 12 mm.

5. A precast concrete sandwich wall panel, characterised in that, include: Inner leaf concrete slab; Outer leaf concrete slabs are disposed on both sides of the inner leaf concrete slab; An insulation layer is disposed between the inner leaf concrete slab and the outer leaf concrete slab; The sheet-like stainless steel connector as described in claim 1 penetrates the insulation layer and extends into the interior of the inner leaf concrete slab and the outer leaf concrete slab, thereby connecting the inner leaf concrete slab and the outer leaf concrete slab, wherein the position of the center plate corresponds to the insulation layer; The through-bar is installed through the anchor hole, and the through-bar and the anchor hole are bound together.

6. The precast concrete sandwich insulated wall according to claim 5, characterized in that: wherein The pair of connecting plates are a first connecting plate and a second connecting plate. The position of the first connecting plate corresponds to the position of the outer leaf concrete slab, and the position of the second connecting plate corresponds to the position of the inner leaf concrete slab.

7. The precast concrete sandwich insulated wall according to claim 6, characterized in that: wherein The anchoring hole provided on the first connecting plate is the first anchoring hole, and the anchoring hole provided on the second connecting plate is the second anchoring hole. The through steel bar is subject to sliding constraint with the first anchoring hole, and the through steel bar is subject to fixed constraint with the second anchoring hole.

Images